AGAWA CANYON, Ontario, Canada -- There are no animals, no birds, not one moving creature, except for a man on a lake who raises his hand as we pass. It is overcast. Sky the color of cotton wool muffles the harsh rocky landscape; the snow and hills blend into a black-and-white panorama dotted with the drab loden of the pines. Snow falls in fits and starts. It is already more than 2 feet deep. Let spring come somewhere else; winter has settled here, as always.Last year, the Agawa Canyon Snow Train did not run. This year, it has $11 million worth of new equipment, upgraded coaches and splendid new burgundy paint. It has a warm dining car with good service and hearty food. It is running each Saturday through March 10.The question is: Does anyone have the patience to ride the Snow Train anymore?